Instructors will continue to offer insight into everything fly-fishing, from the entomology of the insects that flies imitate to specialized knots for attaching fly, leader and line to casting techniques, in the free Learn to Fly Fish Weekend that continues Sunday at Limestone Springs Fishing Preserve at Richland.

Brent Blauch and Mark Ely, the owner-operators of Susquehanna Aquacultures Inc. who bought Limestone Springs in 2004, have teamed with Cabela's to present the weekend of instruction for novice and experienced anglers alike.

Among the shops and guides providing the instruction at the various stations throughout the 8:30 a.m.-2:30 p.m. day will include Susquehanna Fly Fisherman Inc., the TCO Fly Shop in West Lawn and Red Ridge Lodge.

Visitors may bring their own rods and reels, but practice gear will be available, as will starter packages for sale.

The instruction and demonstrations will be held under a large tent on the sprawling hatchery grounds, in the enticing view of the fishing ponds and "stream."

Limestone Springs draws its water from a spring-fed, 19th century, limestone quarry, and for much of its fee-fishing pools uses a former section of the Union Canal.

Those fee-fishing pools will be in operation throughout each day.

Limestone Springs is located at 930 Tulpehocken Rd., just north of Richland. For more information, call 866-2461.